Files
sky-cam/fullday-video.sh
T
Claude 9039803a51 Fix undefined CAM_NAME crash; log when window already closed on re-run
4-seasons.sh, fullday-video.sh: CAM_NAME fallback referenced undefined
\$CAM_NAME — under set -euo pipefail this crashes if called manually without
an argument. Changed to fall back to \$SUNRISE_CAM (matches capture.sh).

daily_sunrise_video.sh: add log message when the capture window has already
closed (manual re-run after the fact). Behaviour is unchanged — processing
proceeds immediately — but the operator now gets a clear confirmation rather
than silence.

https://claude.ai/code/session_01C4jbd3waXG3eKZYbGUjLUQ
2026-04-20 00:29:47 +00:00

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#!/bin/bash
# fullday-video.sh — create a natural-speed timelapse of yesterday's full day of
# images at a fixed frame rate. Files older than RETENTION_DAYS are deleted
# automatically. Sunrise 10-second uploads and montage videos are NOT touched.
#
# Run once per day from cron (e.g. 02:00 daily, after 4-seasons.sh).
set -euo pipefail
SCRIPT_DIR="$(dirname "$(realpath "$0")")"
source "$SCRIPT_DIR/sky-cam.conf"
# Camera name: first argument overrides conf (systemd passes it via ExecStart).
CAM_NAME="${1:-$SUNRISE_CAM}"
# ── Configuration ──────────────────────────────────────────────────────────────
base_dir="$BASE_DIR"
# FULLDAY_FPS and RETENTION_DAYS come from sky-cam.conf
# ── Date / paths ──────────────────────────────────────────────────────────────
yesterday=$(date --date="yesterday" +%Y-%m-%d)
image_dir="$base_dir/$CAM_NAME/$yesterday"
output_dir="$MOVIES_DIR/$CAM_NAME/fullday"
mkdir -p "$output_dir"
# ── Purge old full-day videos ─────────────────────────────────────────────────
echo "Removing full-day videos older than $RETENTION_DAYS days..."
find "$output_dir" -maxdepth 1 -name "*-fullday.mp4" -mtime "+$RETENTION_DAYS" -delete
# ── Sanity checks ─────────────────────────────────────────────────────────────
if [ ! -d "$image_dir" ]; then
echo "WARNING: Image directory $image_dir not found — skipping."
exit 0
fi
num_images=$(find "$image_dir" -type f -name "*.jpg" | wc -l)
if [ "$num_images" -lt 1 ]; then
echo "WARNING: No images in $image_dir — skipping."
exit 0
fi
frame_dur=$(echo "scale=6; 1 / $FULLDAY_FPS" | bc)
approx_min=$(echo "scale=1; $num_images / $FULLDAY_FPS / 60" | bc)
echo "Images: $num_images at ${FULLDAY_FPS} fps ≈ ${approx_min} min"
# ── Build concat list with per-frame duration ─────────────────────────────────
# The concat demuxer needs an explicit duration per image; the last file is
# repeated without a duration to correctly anchor the final frame's pts.
temp_list=$(mktemp --suffix=.txt)
trap 'rm -f "$temp_list"' EXIT
find "$image_dir" -type f -name "*.jpg" | sort | while read -r img; do
printf "file '%s'\nduration %s\n" "$img" "$frame_dur"
done > "$temp_list"
# Append last image again (required by ffmpeg concat demuxer for images)
last_img=$(find "$image_dir" -type f -name "*.jpg" | sort | tail -n 1)
printf "file '%s'\n" "$last_img" >> "$temp_list"
# ── Encode — native camera resolution, no audio ───────────────────────────────
output_file="$output_dir/${yesterday}-fullday.mp4"
echo "Creating: $output_file"
ffmpeg -loglevel warning \
-f concat -safe 0 -i "$temp_list" \
-c:v libx264 -pix_fmt yuv420p -crf "$CRF_FULLDAY" \
-an -y "$output_file"
actual_dur=$(ffprobe -v error -show_entries format=duration -of csv=p=0 "$output_file")
echo "Done: $output_file (${actual_dur}s / $(echo "scale=1; $actual_dur/60" | bc) min)"